Surf Forecasts:
Jaconé surf forecast from 14 Sep 2026:
- Best quality surf: Thursday 17 Sep, 6AM (local time) - 5ft (1.5m), 11s period, S swell with cross-offshore winds.
- Most powerful swell: Thursday 17 Sep, 6PM (local time) - 6ft (1.8m), 12s period, S swell with 956 kJ wave energy.
- Next surfable swell (1★+): Monday 14 Sep, 9AM (local time) - 3.5ft (1.1m), 8s period with S swell.
Best Forecast Surf Conditions for Jaconé this week:
The surf forecast for Jaconé over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Sep 14) at 9AM. The primary swell is predicted to be 1.1m and 8s period with a secondary swell of 0.5m and 8s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Jaconé in the next 16 days are 1.8m 12s and forecast to arrive on Thursday (Sep 17) at 6PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.5m 6s period and expected on Friday (Sep 18) at 9PM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9AM (Mon 14th Sep) | 3.5ft (1.1m) 8s |
| Best Surf | 6AM (Thu 17th Sep) | 5ft (1.5m) 11s |
| Most Powerful | 6PM (Thu 17th Sep) | 6ft (1.8m) 12s |
Table - best surf conditions forecast for Jaconé over the next 16 days.
The Lowdown
Alright, Rusty here, let’s have a look at what’s coming down the line for Jaconé.
We’ve got some swell on the horizon, but it’s not all go. The first few days are a bit of a write-off with onshore junk and rain, so don’t bother paddling out until later in the week. The real standouts come Thursday and then again next week Friday.
The first real session looks like Thursday, the 17th. We’ll see a clean 5ft to 6ft southerly swell building through the day, with a period stretching out to 13 seconds by the afternoon. That’s groundswell energy, and the wave energy is solid at 756 for the morning and pumping up to 1114 in the arvo. The wind will be light and cross-off from the east, keeping the faces clean. This is the pick of the first week—Thursday afternoon will be excellent for experienced surfers. That’s your go.
Friday the 18th hangs in there with a 5ft south swell (11s period) and offshore ENE wind in the morning, energy at 481. It’s good, but the wind picks up strong in the afternoon and the quality drops. Not terrible, just not as good as Thursday.
We then hit a flat spell from Saturday the 19th through to Tuesday the 24th. Swell drops under 3ft and the wind either goes onshore or stays cross-off with no punch. There are a few clean but tiny options around 3ft, but honestly, it’s ordinary. Leave the board in the car.
Then we get a nice surprise on Friday the 25th. Glassy conditions in the morning with a light NNE breeze, and a building 3ft SSW groundswell rolling in with an 11-second period. The energy’s moderate at 252, and the wind is dead flat—glassy. That’s the second standout session. Clean, fun waves for the intermediate crew, though the swell is small so don’t expect barrels.
After that, Saturday the 26th drops off again. Swell fades to 2ft with choppy sideshore winds, and it stays tiny and messy right through to the end of the month. There is a small pulse of 4ft southerly swell on Tuesday the 29th with clean conditions, but it’s not going to set the world on fire.
Water temp is about average for this time of year, so no drama with the wetsuit.
Crowds at Jaconé can be a factor sometimes, but on Thursday the 17th and especially Friday the 25th with the glass, you might find a bit of company. Worth the paddle though.
Rusty.
Short Range ForecastHeavy rain (total 61mm), heaviest during Mon night. Warm (max 20°C on Tue morning, min 18°C on Mon morning). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 5mm), mostly falling on Sat night. Warm (max 23°C on Fri morning, min 18°C on Thu night). Mainly fresh winds. | ||||||||||||||||||||
Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | S 8 | S 9 | SSW 12 | S 11 | SSW 10 | SSW 9 | SSW 10 | S 12 | S 12 | S 10 | S 13 | S 11 | S 12 | S 11 | S 11 | S 10 | S 10 | E 6 | E 7 | E 7 | E 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 137 | 184 | 240 | 238 | 167 | 232 | 231 | 193 | 322 | 459 | 404 | 675 | 714 | 566 | 326 | 242 | 192 | 219 | 211 | 211 | 256 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | cross-off | on | on | cross-on | on | cross-on | cross-off | cross-off | cross-off | off | off | cross-off | cross-off | off | cross-off | off | off | off | off |
High Tide | 3:49PM0.92m | 4:19AM0.99m | 4:10PM0.88m | 4:56AM0.91m | 4:35PM0.84m | 5:41AM0.82m | 5:06PM0.79m | 6:47AM0.74m | 5:49PM0.72m | 10:35AM0.74m | 7:04PM0.67m | 11:38AM0.82m | 11:03PM0.71m | ||||||||
Low Tide | 10:21AM0.19m | 10:25PM0.15m | 10:56AM0.29m | 11:03PM0.17m | 11:36AM0.38m | 11:49PM0.21m | 12:27PM0.47m | 00:48AM0.27m | 1:39PM0.53m | 2:05AM0.30m | 3:08PM0.54m | 3:29AM0.29m | 4:28PM0.50m | ||||||||
 | |  |  |  | |  | |  | | |  | | | | | | | | |  | |
 | 5:48 | — | — | 5:47 | — | — | 5:46 | — | — | 5:45 | — | — | 5:43 | — | — | 5:43 | — | — | 5:41 | — | — |
 | — | 5:43 | — | — | 5:44 | — | — | 5:44 | — | — | 5:44 | — | — | 5:45 | — | — | 5:45 | — | — | 5:45 | — |
mm | 6 | 9 | 28 | — | — | 13 | 2 | 1 | 2 | — | — | — | — | — | 1 | — | — | 4 | 2 | 3 | 1 |
Temp °C | 18 | 19 | 18 | 20 | 20 | 19 | 19 | 20 | 20 | 19 | 19 | 18 | 23 | 22 | 20 | 20 | 21 | 20 | 20 | 21 | 21 |
Feels °C | 19 | 18 | 18 | 21 | 20 | 20 | 18 | 19 | 19 | 17 | 16 | 15 | 21 | 19 | 18 | 19 | 19 | 16 | 18 | 21 | 22 |
Swell 1 Height (m) Direction Period (s) | S 8 | S 9 | SSE 8 | S 11 | SSW 10 | SSW 9 | SSW 10 | SSW 10 | S 12 | S 10 | S 10 | S 11 | S 12 | S 11 | S 11 | S 10 | S 10 | S 10 | S 9 | S 12 | S 11 |
| kJ | 137 | 184 | 123 | 238 | 167 | 232 | 231 | 163 | 322 | 459 | 354 | 675 | 714 | 566 | 326 | 242 | 192 | 90 | 43 | 137 | 65 |
Swell 2 Height (m) Direction Period (s) | E 8 | S 13 | SSW 12 | SSE 8 | SSE 9 | SE 8 | ESE 8 | S 12 | ESE 10 | S 14 | S 13 | S 14 | ESE 8 | ESE 8 | SSE 13 | S 15 | S 14 | SSW 9 | S 13 | SSE 9 | SE 8 |
| kJ | 36 | 86 | 240 | 86 | 68 | 50 | 52 | 193 | 58 | 198 | 404 | 146 | 28 | 24 | 57 | 5 | 4 | 17 | 79 | 16 | 3 |
Swell 3 Height (m) Direction Period (s) | S 13 | ESE 8 | ESE 8 | E 8 | E 8 | E 9 | S 13 | ESE 7 | SE 8 | ESE 9 | — | ESE 8 | — | — | — | S 15 | — | S 13 | SSW 9 | SE 14 | SE 14 |
| kJ | 55 | 23 | 22 | 41 | 48 | 38 | 56 | 29 | 22 | 70 | — | 40 | — | — | — | 4 | — | 31 | 8 | 7 | 7 |
Wind waves Height (m) Direction Period (s) | — | E 3 | N 3 | — | SSW 2 | WSW 5 | — | — | SSE 5 | — | ESE 9 | E 4 | E 6 | E 5 | E 6 | E 6 | E 6 | E 6 | E 7 | E 7 | E 8 |
| kJ | — | 8 | 1 | — | 1 | 24 | — | — | 32 | — | 79 | 40 | 59 | 92 | 144 | 132 | 188 | 219 | 211 | 211 | 256 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 34 | 58 | 58 | 93 | 332 | 0 | 10 | 10 | 0 | 0 | 216 | 49 | 0 | 216 | 53 | 25 | 0 | 0 |
Best forecast wave conditions in Rio de Janeiro | |||||||||||||||||||||
Best forecast wave conditions in Brazil | |||||||||||||||||||||
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Information about the Jaconé Surf forecast
The above surf forecast table for Jaconé provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Jaconé can be found by selecting the local surf guide option on the grey menu. Our Jaconé surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Jaconé) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).
Further information to help with frequently asked questions about our surf forecast for Jaconé may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.
Jacone is 14 km (9 miles) from the city of Saquarema. If you plan a holiday in Rio de Janeiro, look for hotels and other accommodation in Saquarema. Saquarema has rooms for a wide range of budgets as well as car hire and transport links.
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